﻿First report of the genus Woonpaikia Park, 2010 (Lepidoptera, Lecithoceridae) from China, with the description of two new species

﻿Abstract The lecithocerid genus Woonpaikia Park, 2010 and Woonpaikiaangoonae Park, 2010 are newly recorded from China. Woonpaikiasimilangoonae Yu & Wang, sp. nov. and W.imperspicua Yu & Wang, sp. nov. are described as new to science. Images of adults of the Chinese Woonpaikia species are provided, along with a key to the males of all the known species of Woonpaikia.


Introduction
Woonpaikia Park, 2010 is a small genus of lepidopteran classified in the family Lecithoceridae, subfamily Lecithocerinae.Park (2010) erected the genus to accommodate W. villosa and W. angoonae from Thailand, with W. villosa as the type species.Since then, no more species have been described.Woonpaikia is morphologically similar to the type genus of Lecithoceridae, Lecithocera Herrich-Schäffer, 1853, in sharing a similar wing pattern and venation, but it can be distinguished by presence of a ventrodistal pectin-like scale tuft on the scape of the antennae, labial palpi dorsally with dense, long, hair-like scales, male genitalia with the juxta decrescent and the sacculus produced apically to form a process.
Here we describe two new species of Woonpaikia.We also provide new distribution records for other known species in China, as well as a key to identify males of all the known species of this genus.

Materials and methods
The specimens examined were collected in China using 450 W high-pressure mercury lamps.Morphological terminology in the descriptions follows Gozmány (1978).Wingspan was measured from the tips of the left to right forewings.Slides of genitalia were prepared following the methods introduced by Li (2002).Photographs of the adults were taken with a Leica M205A stereomicroscope, and photographs of genitalia were taken with a Leica DM750 microscope plus the Leica Application Suite v. 4.6.All photographs were refined with Photoshop CC.
Materials examined, including the type series of the new species, are deposited in Liaocheng University, Liaocheng, China (LCU), except for several specimens of W. angoonae, which are deposited in the Insect Collection of Nankai University, Tianjin, China (NKU).Description.Adult wingspan 10.5-12.5 mm (Fig. 1A).

Taxonomic accounts
Diagnosis.This species can be recognized by the smoothly arcuate apical process of the sacculus which extends posteriorly beyond the apex of the cucullus (Fig. 3A).It is most similar to the new species, W. similangoonae.The differences between these species are detailed below.
Distribution.China (Yunnan, new record), Thailand.Remarks.This species was originally described from Thailand based on a single male.It is recorded here from China for the first time.Diagnosis.The new species can be distinguished by the triangular apical process of the sacculus which extends for less than 1/2 the length of the cucullus, and by the aedeagus which has dorsal and ventral extensions at the apex; in W. similangoonae and W. angoonae, the apical process of the sacculus is long, extending posteriorly at least as far as the apex of the cucullus (sometimes further).Woonpaikia villosa has a transverse fascia in the hindwing (Park 2010: 240, fig.1), whereas W. imperspicua lacks this fascia.
Male genitalia (Fig. 3B).Uncus with caudal lobes thumb-shaped.Gnathos with basal plate distally semi-ovate, with rounded apex; median process almost uniformly wide in basal 2/3, thereafter sharply narrowed to a pointed apex, curved ventrad at basal 2/3 by a right angle.Costal bar narrow, taenioid.Valva with basal part subquadrate; cucullus arising from upper corner of basal part of valva, narrowed at base, widened to middle, width at middle about twice width of base, thereafter narrowed to blunt apex, nearly straight on costal margin, bearing a row of needle-like setae along ventral margin; sacculus wide, straight on its ventral margin, with a triangular apical process extending less than 1/2 length of cucullus and bearing a row of needle-like setae.Juxta elliptical, wider than long, with a subquadrate process at middle on anterior margin.Vinculum rounded on anterior margin.Aedeagus slightly shorter than valva, almost uniformly wide, with a horn-like dorsal extension and a spiniform ventral extension; cornuti consisting of a flake-like plate placed beyond middle and three spinules near apex. Female.Unknown.

Distribution. China (Yunnan).
Etymology.The specific name is derived from the Latin imperspicuus, referring to the small imperceptible pectin-like scale tuft on the scape of the antenna.Diagnosis.The new species is similar to W. angoonae, but it can be distinguished by the capitate cucullus and the aedeagus with a needle-like apical extension.In W. angoonae, the cucullus is acuminate and the aedeagus lacks an extension on the apex.
Male genitalia (Fig. 3C).Uncus nearly inverted trapezoidal; caudal lobes semiovate.Gnathos with basal plate roundly produced on posterior margin; median process narrowed slightly from base to basal 2/3, thereafter sharply narrowed to a pointed apex, curved ventrad at basal 2/3 by a right angle.Costal bar narrow, arched taenioid.Valva with basal part trapezoidal; cucullus capitate, arising from upper corner of basal part of valva, sinuate, narrow basally, widened to about basal 2/3, thereafter narrowed slightly to rounded apex, costal margin arched in basal 1/2 and straight in distal 1/2; sacculus wide, straight on its ventral margin, with a long, apical process extending posteriorly as far as apex of cucullus.Juxta elliptical, wider than long, with a thumbed process at middle on anterior margin.Vinculum subrounded on anterior margin.Aedeagus slightly shorter than valva, wide at base, narrowed to apex, with a needle-like apical extension; cornuti consisting of two needle-like spines of different sizes and a flake-like plate bearing three spinules.
Etymology.The specific epithet is derived from the Latin simile (likeness) and angoonae, referring to the similarity between this new species and W. angoonae.

Figure 1 .
Figure 1.External features of Woonpaikia spp.A-C W. angoonae Park, 2010, male, YUS063 B lateral view of head C close-up of scape D-F W. imperspicua sp.nov., holotype, male, YUS064 E lateral view of head F close-up of scape G-I W. similangoonae sp.nov., male, YUS062 H lateral view of head I close-up of scape.Scale bars: 2.0 mm.